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math.ST2010
A Lower Bound on the Estimator Variance for the Sparse Linear Model
Sebastian Schmutzhard, Alexander Jung, Franz Hlawatsch +2
We study the performance of estimators of a sparse nonrandom vector based on an observation which is linearly transformed and corrupted by additive white Gaussian noise. Using the…
math.ST2010★ 1 cited
Unbiased Estimation of a Sparse Vector in White Gaussian Noise
Alexander Jung, Zvika Ben-Haim, Franz Hlawatsch +1
We consider unbiased estimation of a sparse nonrandom vector corrupted by additive white Gaussian noise. We show that while there are infinitely many unbiased estimators for this p…